{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T06:06:42Z","timestamp":1777442802735,"version":"3.51.4"},"reference-count":25,"publisher":"SAGE Publications","issue":"10","license":[{"start":{"date-parts":[[2021,7,14]],"date-time":"2021-07-14T00:00:00Z","timestamp":1626220800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Appl Spectrosc"],"published-print":{"date-parts":[[2021,10]]},"abstract":"<jats:p>\n                    Simple ultraviolet\u2013visible spectroscopy-based methodology was proposed and utilized for the initial characterization of potential changes in selectivity of doped magnetic nanoparticles. Doped and undoped iron(II,III) (Fe\n                    <jats:sub>3<\/jats:sub>\n                    O\n                    <jats:sub>4<\/jats:sub>\n                    ) magnetic nanoparticles were synthesized by the coprecipitation method. The doping processes of nanoparticles were confirmed using optical emission spectrometry, while the sizes of undoped and Cu-doped nanoparticles were investigated using a high-resolution field emission scanning electron microscope. The average diameters of nanoparticles were 8.34\u00b11.78\u2009nm and 9.12\u00b11.93\u2009nm, for doped and undoped materials, respectively. The influence of the nanoparticle's doping on their selectivity towards chosen analyte was monitored by the spectral techniques such as ultraviolet\u2013visible and optical emission spectrometry. The interaction between Cu-doped Fe\n                    <jats:sub>3<\/jats:sub>\n                    O\n                    <jats:sub>4<\/jats:sub>\n                    nanoparticles and cuprizone (a compound forming the characteristic colorful complex with copper) was confirmed. The elaborated studies proved the potential of ultraviolet\u2013visible spectroscopy for the fast qualification of magnetic nanoparticles in terms of their ability to separate the selected analyte from the sample matrix.\n                  <\/jats:p>","DOI":"10.1177\/00037028211028669","type":"journal-article","created":{"date-parts":[[2021,7,14]],"date-time":"2021-07-14T09:36:01Z","timestamp":1626255361000},"page":"1305-1311","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Simple Ultraviolet\u2013Visible Spectroscopy-Based Assay for Fast Evaluation of Magnetic Nanoparticle Selectivity Changes After Doping"],"prefix":"10.1177","volume":"75","author":[{"given":"Jacek","family":"Sikorski","sequence":"first","affiliation":[{"name":"Chair of Analytical Chemistry, Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Norbert","family":"Obarski","sequence":"additional","affiliation":[{"name":"Chair of Analytical Chemistry, Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maciej","family":"Trzaskowski","sequence":"additional","affiliation":[{"name":"Centre for Advanced Materials and Technologies CEZAMAT PW, Warsaw University of Technology, Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5631-8163","authenticated-orcid":false,"given":"Magdalena","family":"Matczuk","sequence":"additional","affiliation":[{"name":"Chair of Analytical Chemistry, Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2021,7,14]]},"reference":[{"key":"bibr1-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1021\/cr068445e"},{"key":"bibr2-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1021\/cr300068p"},{"key":"bibr3-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1039\/C7TC05854C"},{"key":"bibr4-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-018-29736-5"},{"key":"bibr5-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1039\/C4RA05550K"},{"key":"bibr6-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1039\/C9NJ02759A"},{"key":"bibr7-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1021\/nn500722y"},{"key":"bibr8-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1146\/annurev-bioeng-071811-150124"},{"key":"bibr9-00037028211028669","doi-asserted-by":"publisher","DOI":"10.2217\/nnm.16.5"},{"key":"bibr10-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1016\/j.saa.2014.03.089"},{"key":"bibr11-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1016\/S1381-1169(03)00496-5"},{"key":"bibr12-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1016\/j.cap.2004.01.041"},{"key":"bibr13-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1007\/s11051-016-3341-1"},{"key":"bibr14-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jpcc.5b07580"},{"key":"bibr15-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jpcc.5b10618"},{"key":"bibr16-00037028211028669","doi-asserted-by":"publisher","DOI":"10.1007\/s11051-013-1856-2"},{"key":"bibr17-00037028211028669","doi-asserted-by":"publisher","DOI":"10.3938\/jkps.72.243"},{"key":"bibr18-00037028211028669","first-page":"22","volume":"488","author":"Sikong L.","year":"2012","journal-title":"Adv. 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